Dredging device, dredging method and dredging system for multi-steel-strand lifter

Abstract

The invention provides a dredging device, a dredging method and a dredging system for a multi-steel-strand lifter. The dredging device comprises a dredging plate, a plurality of dredging plate through holes are formed in the dredging plate, each steel strand can penetrate through one dredging plate through hole, and different steel strands correspond to different dredging plate through holes; the dredging plates slide downwards under the action of self weight, and the steel strands penetrating through the penetrating holes of the different dredging plates are distinguished in the sliding process, so that the mounting perpendicularity of the steel strands at the lifting ground anchor end is guaranteed. The multi-steel-strand lifter can be used for hoisting and lifting a steel corridor, and when the multi-steel-strand lifter is used for lifting a heavy steel corridor, two or more multi-steel-strand lifters for dredging multiple steel strands by utilizing the dredging device are arranged at a single hoisting point; and a guide frame is preferably arranged on the lifting reaction frame and is used for assisting the steel strands of the lifters to be orderly and smoothly guided out.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and in particular relates to a dredging device and a dredging method for a multi-steel strand hoist, and a single-point multi-hoist multi-steel strand system for a heavy steel corridor. Background Art

[0002] With the continuous development of the construction industry, the structural forms of buildings are becoming more and more diversified, the use of steel structures is becoming more frequent and diverse, and the combination of high-rise and super-high-rise towers and steel structure corridors is becoming more and more widely used.

[0003] There are various construction methods for steel corridors, including ground assembly, integral hoisting, in-situ assembly on temporary support frames, ground in-situ assembly, and integral lifting. For heavy steel corridors, which are inherently heavy and require high installation heights, ground assembly and hydraulic integral lifting are the most suitable and economical construction methods.

[0004] Hydraulic integral lifting technology uses hydraulic hoists as lifting tools and flexible steel strands as load-bearing cables, connecting the hoists to the structure being lifted. A pump source serves as the power system, and the hoists serve as the working terminals. Through real-time monitoring by a computerized synchronous control system, it achieves synchronous control, posture correction, load balancing, and precision control, safely and accurately raising the structure to the designed elevation. Heavy-duty steel corridors utilize a large number of hoists and steel strands. The high lifting heights result in longer and larger strands. Properly guiding the steel strands and ensuring their proper routing are key to a successful lift. Summary of the Invention

[0005] The invention provides a guiding device for a multi-steel strand hoist, which can guide each steel strand, thereby improving the installation verticality of the steel strand at the lifting anchor end.

[0006] The technical solution provided by the present invention is: a drainage device for a multi-steel strand hoist, wherein the hoist includes M steel strands, one end of each steel strand is marked as end A, and the other end is marked as end B; the A end of each steel strand passes through a through-hole in the hoist, which is marked as the hoist through-hole, and each steel strand corresponds to a different hoist through-hole; the B end of each steel strand passes through a through-hole in a hoisting ground anchor, which is marked as the ground anchor through-hole, and each steel strand corresponds to a different ground anchor through-hole;

[0007] The drainage device includes a drainage plate, which is provided with N perforations, which are recorded as drainage plate perforations. Each steel strand can pass through a drainage plate perforation. Different steel strands correspond to different drainage plate perforations, and N≥M.

[0008] The method for guiding the multi-strand lifter using the guiding device comprises the following steps:

[0009] (1) Assemble the steel strands and the drainage plate on the ground and insert them so that each steel strand passes through a drainage plate through-hole, and different steel strands correspond to different drainage plate through-holes; pass the A end of the steel strand through the lifter, so that each steel strand corresponds to a different lifter through-hole; fix the drainage plate and the steel strands;

[0010] (2) Hoist the assembly consisting of the hoist, steel strand and guide plate onto the hoist reaction frame and secure it;

[0011] (3) The fixation between the guide plate and the steel strand is released, and the guide plate slides downward under the action of its own weight. The sliding process can distinguish the steel strands passing through different holes of the guide plate, ensuring that the B end of each steel strand maintains the same projected position as the A end of the steel strand when it passes through the lifting anchor, thereby ensuring the verticality of the installation of the B end of the steel strand.

[0012] The material of the guide plate is not limited, but is preferably steel.

[0013] The shape of the diversion plate is not limited and can be round, square, etc.

[0014] The aperture of the drainage plate perforations must satisfy the requirement that the drainage plate can slide downward under the action of its own weight. Preferably, the aperture of each drainage plate perforation is greater than or equal to the diameter of the steel strand passing through the perforation.

[0015] Preferably, the position of each drainage plate perforation corresponds to the position of each lifter perforation, that is, each lifter perforation is located at the vertical projection position of the corresponding drainage plate perforation. Further preferably, the position of each lifter perforation corresponds to the position of each anchor perforation, that is, each anchor perforation is located at the vertical projection position of the corresponding lifter perforation.

[0016] In step (1), the fixed position of the guide plate and the steel strand needs to satisfy the requirement that after the fixation between the guide plate and the steel strand is released, the guide plate can slide down due to its own weight to guide the steel strand. Preferably, the guide plate is closer to the lifter, so that the distance between the guide plate and the lifting anchor is longer.

[0017] In the step (1), the fixing method of the guide plate and the steel strand is not limited. For example, the guide plate and the steel strand can be bound together with iron wire. In the step (3), the binding of the iron wire is released, and the guide plate is released from the steel strand.

[0018] The multi-steel strand lifter can be used to hoist the steel corridor. In actual hoisting operations, the steel strand lifters can be set at different positions of the steel corridor for hoisting, that is, multi-point hoisting. When lifting a heavy steel corridor, the number of the multi-steel strand lifters preferably set at a single lifting point is greater than or equal to two, and each of the multi-steel strand lifters is installed on a lifting reaction frame, that is, a single-point multi-lifter multi-steel strand system for a heavy steel corridor is formed. In this system, the multi-steel strand lifter is simply referred to as a lifter. In this system, when each lifter is started, the A end of the steel strand of each lifter is led out from the upper end of the lifter during the process of extending and retracting the cylinder. As the heavy steel corridor rises, the length of the steel strand led out by each lifter increases, and it is easy for the steel strands to be entangled with each other, affecting the leading out, or even being bound to each other and unable to be led out. For this reason, the present invention preferably provides a guide frame, which is fixed on the lifting reaction frame to assist the steel strands of each lifter to be led out in an orderly and smooth manner.

[0019] As an implementation method, the guide frame includes vertical poles and horizontal poles; the vertical poles correspond to the lifters one by one; spacer vertical poles are set between adjacent vertical poles; each vertical pole is connected to the adjacent spacer vertical poles by a horizontal pole to form an H-shaped bracket for leading out the steel strands of the lifter corresponding to the vertical pole.

[0020] The guide frame's load-bearing capacity is adjusted based on the weight of the steel strands. The guide frame's load-bearing capacity is controlled by the materials and structural dimensions of the vertical poles, crossbars, and spacer poles. As a preferred implementation, one or more of the vertical poles, crossbars, and spacer poles are constructed of steel pipes.

[0021] Preferably, two or more cross bars are provided between each vertical bar and the adjacent spaced vertical bars along the height direction of each vertical bar to form a ladder-type bracket. The steel strands of the lifter can be guided out from the appropriate cross bar position according to the actual height of the lifter corresponding to the vertical bar.

[0022] Compared with the prior art, the present invention has the following advantages or positive effects:

[0023] 1. The guiding device of the multi-steel strand hoist of the present invention has a simple structure, is easy to manufacture, and has low cost. The guiding device can be used to guide the steel strands of the multi-steel strand hoist, thereby improving the verticality of the steel strands installed at the lifting anchor end. In addition, the guiding device is reusable, thereby increasing utilization and avoiding waste.

[0024] 2. The multi-steel strand hoist of the present invention can be used to lift steel corridors. When the number of the multi-steel strand hoists arranged at a single lifting point is greater than or equal to two, the present invention preferably provides a guide frame. The guide frame has a simple structure and can assist in orderly and smoothly leading out the steel strands of each hoist, thereby greatly reducing the problem of the steel strands being entangled with each other and affecting the leading out or even being bound by each other and unable to be led out during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the multi-steel strand lifter of the present invention and the use of a guiding device to guide multiple steel strands.

[0026] Figure 2 yes Figure 1 Schematic diagram of the transverse and longitudinal sections of the guiding device used to guide multiple steel strands.

[0027] Figure 3 It is a structural schematic diagram of the heavy-duty steel corridor with single-point multiple hoists and multiple steel strands of the present invention.

[0028] Figure 4 yes Figure 3 Longitudinal cross-section of .

[0029] Figure 5 yes Figure 3 Top view of the middle lifter and guide frame.

[0030] Figure 6 yes Figure 3 Longitudinal and cross-sectional views of the middle guide frame.

[0031] Figure 1-6 The numbers in are marked as:

[0032] 1: Lifting reaction frame; 2: Lifter; 3: Steel strand; 4: Lifting anchor; 5: Guide plate; 6: Guide frame; 7: Guide plate perforation; 8: Vertical pole; 9: Crossbar; 10: Spacer vertical pole DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the embodiments. It should be pointed out that the embodiments described below are intended to facilitate understanding of the present invention, and non-essential improvements and adjustments made to the present invention by those skilled in the art based on the above-mentioned contents of the present invention still fall within the scope of protection of the present invention.

[0034] The words “include”, “including” and the like used in the present invention should be interpreted as including rather than exclusive or exhaustive, that is, as “including but not limited to”.

[0035] like Figure 1As shown, the multi-strand hoist 2 includes M steel strands 3, one end of the steel strand 3 is marked as end A, and the other end is marked as end B; the A end of each steel strand passes through a through-hole in the hoist 2, which is marked as the hoist through-hole, and each steel strand corresponds to a different hoist through-hole; the B end of each steel strand passes through a through-hole in the hoisting anchor 4, which is marked as the anchor through-hole, and each steel strand corresponds to a different anchor through-hole. In this field, the hoist through-hole and the anchor through-hole are commonly used structures in the hoist and the anchor, respectively. Figure 1 The holes for the riser and the anchor are not shown.

[0036] like Figure 1 、 2 As shown, the guiding device for guiding the steel strands 3 of the multi-strand hoist 2 is a circular guiding plate 5. The guiding plate 5 is provided with N perforations, which are recorded as guiding plate perforations 7. Each steel strand 3 of the hoist 2 can pass through one guiding plate perforation 7, and different steel strands 3 correspond to different guiding plate perforations 7. For example, in some embodiments, the hoist 2 includes 16 steel strands 3, and the hoist 2 is provided with 16 hoist perforations, which correspond one-to-one with the 16 steel strands 3. The lifting anchor is provided with 16 ground anchor perforations, which correspond one-to-one with the 16 steel strands 3. The guiding plate 5 is provided with 16 guiding plate perforations 7, which correspond one-to-one with the 16 steel strands 3.

[0037] The method for guiding the steel strand of the hoist using the guiding device comprises the following steps:

[0038] (1) Assemble the steel strands 3 and the drainage plate 5 on the ground and insert them, that is, each steel strand 3 passes through a drainage plate through-hole 7, and different steel strands 3 correspond to different drainage plate through-holes 7; insert the A end of each steel strand into the riser 2, so that each steel strand 3 corresponds to a different riser through-hole; fix the drainage plate 5 and the steel strands 3;

[0039] (2) hoisting the assembly consisting of the hoist 2, steel strand 3 and guide plate 5 of step (1), installing and placing it on the lifting reaction frame 1 and fixing it;

[0040] (3) Release the fixation between the guide plate 5 and the steel strand 3, and the guide plate 5 slides downward under the action of its own weight. The sliding process can distinguish the steel strands 3 passing through different guide plate perforations 7, ensuring that the B end of the steel strand 3 maintains the same projected position as the A end of the steel strand when passing through the lifting anchor 4, thereby maintaining the installation verticality of the B end of the steel strand.

[0041] The material of the diversion plate 5 is not limited, and in some embodiments, steel is selected. In some embodiments, the shape of the diversion plate 5 can be square, etc.

[0042] In the drainage plate 5, the aperture of each drainage plate perforation 7 must meet the requirement that the drainage plate 5 slides downward under the action of its own weight. Preferably, the aperture of each drainage plate perforation 7 is greater than or equal to the diameter of the steel strand 3 passing through the drainage plate perforation 7.

[0043] In step (1), the fixing method of the guide plate 5 and the steel strand 3 is not limited. In some embodiments, the guide plate and the steel strand can be bound together with iron wire. In step (3), the binding of the iron wire is released, and the guide plate is released from the steel strand.

[0044] In some embodiments, the position of each drainage plate perforation corresponds to the position of each lifter perforation, i.e., each lifter perforation is located at the vertical projection of the corresponding drainage plate perforation. Furthermore, in some embodiments, the position of each lifter perforation corresponds to the position of each anchor perforation, i.e., each anchor perforation is located at the vertical projection of the corresponding lifter perforation.

[0045] The multi-steel strand hoist 2 can be used to hoist the steel corridor. In actual hoisting operations, hoists can be set at different positions of the steel corridor for hoisting, that is, multi-point hoisting. When lifting a heavy steel corridor, the number of the multi-steel strand hoists 2 preferably set at a single lifting point is greater than or equal to two, and each hoist is installed on the lifting reaction frame 1, which constitutes a single-point multi-hoist multi-steel strand system for the heavy steel corridor. In this system, when each hoist 2 is started, the A end of each hoist is led out from the upper end of each hoist during the process of extending and retracting the cylinder. As the steel corridor rises, the length of the steel strand led out by each hoist increases, and it is easy for the steel strands to be entangled with each other and affect the leading-out, or even be bound to each other and unable to be led out. For this reason, in some embodiments, a guide frame 6 fixed to the lifting reaction frame 1 is provided to assist the steel strands 3 of each hoist to be led out in an orderly and smooth manner. The guide frame 6 includes vertical poles 8 and cross bars 9; the vertical poles 8 correspond to the lifters 2 one by one; spacer vertical poles 10 are set between adjacent vertical poles 8; each vertical pole 8 is connected to the adjacent spacer vertical poles 10 by a cross bar 9 to form an H-shaped bracket for leading out the steel strands of the lifter 2 corresponding to the vertical poles 8.

[0046] In some embodiments, a single-point multi-lifter multi-strand system for heavy steel corridors is provided. Figure 3As shown, four multi-strand hoists 2 are arranged at a single lifting point, forming a 2х2 rectangular arrangement, and each hoist 2 is mounted on a lifting reaction frame 1. The guide frame 6 includes four vertical poles 8, and the four vertical poles 8 correspond to the four hoists 2 one by one. Spacer vertical poles 10 are set between adjacent vertical poles 8, totaling four spacer vertical poles 10. Eight cross bars 9 connect each vertical pole 8 with the adjacent spacer vertical poles 10, forming eight brackets (i.e., one vertical pole, one spacer vertical pole, and one cross bar form one bracket), which serve as brackets for the steel strands 3 guided out of the corresponding hoist 2 of the vertical pole. In some embodiments, such as in Examples 3, 4, and 6, two or more cross bars 9 are set along the height direction of each vertical pole 8 to connect each vertical pole 8 with the adjacent spacer vertical poles 10, forming a ladder-type bracket. The steel strands of the hoist 2 can be guided out from the appropriate cross bar position according to the actual height of the hoist 2 corresponding to the vertical pole 8.

[0047] The load-bearing capacity of the guide frame 6 is adjusted according to the weight of the steel strand 3. The load-bearing capacity of the guide frame 6 can be controlled by the material and / or structural dimensions of the vertical rods 8, cross rods 9, and spacer vertical rods 10. In some embodiments, the vertical rods 8, cross rods 9, and spacer vertical rods 10 are preferably made of steel pipes.

[0048] like Figure 3 As shown, when lifting the steel corridor, each hoist 2 is started, and the A end of the steel strand 3 of each hoist is led out from the upper end of the hoist 2 during the process of extending and retracting the cylinder, and is led out in an orderly manner under the auxiliary constraint of the cross bar of the bracket corresponding to each hoist 2, ensuring the smooth lifting process and reducing or even avoiding the problem of the steel strands being entangled with each other and affecting the lead-out during the lifting process.

[0049] The above embodiments provide a detailed description of the technical solutions of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, supplements or similar substitutions made within the scope of the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guiding device for a multi-strand hoist, characterized by: The lifter includes M steel strands, one end of each steel strand is denoted as end A, and the other end is denoted as end B; the A end of each steel strand passes through a through-hole in the lifter, which is denoted as the lifter through-hole, and each steel strand corresponds to a different lifter through-hole; the B end of each steel strand passes through a through-hole in the lifting anchor, which is denoted as the anchor through-hole, and each steel strand corresponds to a different anchor through-hole; The drainage device includes a drainage plate, which is provided with N perforations, which are recorded as drainage plate perforations. Each steel strand can pass through a drainage plate perforation. Different steel strands correspond to different drainage plate perforations, and N≥M.

2. The drainage device according to claim 1, characterized in that: The material of the diversion plate is steel.

3. The drainage device according to claim 1, wherein: Satisfy at least one of the following conditions (1) to (4): (1) The shape of the drainage plate is round or square; (2) The diameter of each drainage plate perforation is greater than or equal to the diameter of the steel strand passing through the drainage plate perforation; (3) Each lifter perforation is located at the vertical projection position of the corresponding drainage plate perforation; (4) Each anchor hole is located at the vertical projection position of the corresponding lift hole.

4. The drainage device according to claim 1, wherein: The multi-steel strand hoist is used for hoisting and lifting the steel corridor.

5. A method for guiding the multi-strand hoist using the guiding device according to any one of claims 1 to 4, characterized in that: The steps include: (1) Assemble the steel strands and the drainage plate on the ground and insert them so that each steel strand passes through a drainage plate through-hole, and different steel strands correspond to different drainage plate through-holes; pass the A end of the steel strand through the lifter, so that each steel strand corresponds to a different lifter through-hole; fix the drainage plate and the steel strands; (2) Hoist the assembly consisting of the hoist, steel strand and guide plate onto the hoist reaction frame and secure it; (3) The fixation between the guide plate and the steel strand is released, and the guide plate slides downward under the action of its own weight.

6. Single-point multi-lifter multi-strand system for heavy steel corridors, characterized by: Two or more multi-strand lifters as claimed in claim 1 are provided at a single lifting point, and each of the multi-strand lifters is mounted on a lifting reaction frame; Each of the multi-steel strand lifters utilizes the guiding device according to claim 1 to guide multiple steel strands.

7. The single-point multi-lifter multi-steel strand system for heavy-duty steel corridors according to claim 6, characterized in that: It also includes a guide frame, which is fixed on the lifting reaction frame.

8. The single-point multi-lifter multi-steel strand system for heavy-duty steel corridors according to claim 7, characterized in that: The guide frame includes vertical poles and cross bars; the vertical poles correspond to the lifters one by one; spaced vertical poles are set between adjacent vertical poles; each vertical pole is connected to the adjacent spaced vertical poles by a cross bar to form an H-shaped bracket for leading out the steel strands of the lifters corresponding to the vertical poles.

9. The single-point multi-lifter multi-steel strand system for heavy-duty steel corridors according to claim 8, characterized in that: Along the height direction of each vertical pole, two or more horizontal bars are set between each vertical pole and the adjacent spaced vertical poles to form a ladder-type bracket.

10. The single-point multi-lifter multi-steel strand system for heavy-duty steel corridors according to claim 8, characterized in that: Satisfy at least one of the following conditions (1) to (3): (1) The load-bearing capacity of the guide frame is adjusted according to the weight of the steel strand; (2) Controlling the load-bearing capacity of the guide frame by the materials and structural dimensions of the vertical poles, horizontal poles, and spacer poles; (3) One or more of the vertical poles, horizontal poles, and spacer poles are made of steel pipes.

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